Abstract Wellbore instability severely constrains the exploration and development of shale gas. In order to evaluate impacts anisotropy water on wellbore instability, three different types criteria are fitted strength data LMX shales with moisture contents. A new model transversely isotropic borehole stability considering compliance incremental tensor induced by natural fractures is proposed, t...

This research is about 1D geomechanical model for wellbore stability in Z Field, Y Well Sanga Working Area, Kutai Basin where wells have been drilled. The Purpose of this Research to analyze the well starting from knowing stress regime that occurs, predicting occurrence failure, and determining safe mud weight window next drilling. method use a numerical modelling using log data drilling has ob...

The use of multilateral wells is an important method to effectively develop complex oil reservoirs, and wellbore stability research great importance. In the present study, effects formation fluids rock damage were not taken into account by model. Therefore, finite element analysis (FEA) software was used establish a three-dimensional (3D) seepage-stress FEA model for junctions. analyze study in...

Abstract The deep shale gas reservoirs of the Wufeng-Longmaxi Formations in southern Sichuan Basin have strong heterogeneity and complex geological characteristics, resulting a poor fracturing effect low vertical production. Based on whole-rock X-ray diffraction analysis, scanning electron microscopy, gas-bearing experiments, rock mechanical parameter tests well logging elemental data, sediment...

Most of the Iranian oil and gas wells in the Persian Gulf region are producing through their natural productivity and, in the near future, the use of stimulation methods will be undoubtedly necessary. Hydraulic fracturing as a popular technique can be a stimulation candidate. Due to the absence of adequate research in this field, numerical simulation can be an appropriate method to investigate ...